Hydrogen peroxide
- Formula: H2O2
- Molecular weight: 34.0147
- IUPAC Standard InChI: InChI=1S/H2O2/c1-2/h1-2H
- IUPAC Standard InChIKey: MHAJPDPJQMAIIY-UHFFFAOYSA-N
- CAS Registry Number: 7722-84-1
- Chemical structure:
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Reaction thermochemistry data
Go To: Top, IR Spectrum, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: John E. Bartmess
Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.
Individual Reactions
HO2- + =
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 1575.3 ± 2.1 | kJ/mol | G+TS | Ramond, Blanksby, et al., 2002 | gas phase; versus HCCH |
| ΔrH° | 1572. ± 8.8 | kJ/mol | G+TS | Bierbaum, Schmidt, et al., 1981 | gas phase; value altered from reference due to change in acidity scale |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 1546.0 ± 1.7 | kJ/mol | IMRE | Ramond, Blanksby, et al., 2002 | gas phase; versus HCCH |
| ΔrG° | 1542. ± 8.4 | kJ/mol | IMRE | Bierbaum, Schmidt, et al., 1981 | gas phase; value altered from reference due to change in acidity scale |
+
= (
•
)
By formula: NO3- + H2O2 = (NO3- • H2O2)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 80.3 ± 4.2 | kJ/mol | TDEq | Bohringer, Fahey, et al., 1984 | gas phase; Relative to HOH..NO3-, Keesee, Lee, et al., 1980 |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 53.6 ± 4.2 | kJ/mol | TDEq | Bohringer, Fahey, et al., 1984 | gas phase; Relative to HOH..NO3-, Keesee, Lee, et al., 1980 |
+
= (
•
)
By formula: NO2- + H2O2 = (NO2- • H2O2)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 84.5 ± 4.2 | kJ/mol | TDEq | Bohringer, Fahey, et al., 1984 | gas phase; Relative to HOH..NO2-, Keesee, Lee, et al., 1980 |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 59.8 ± 4.2 | kJ/mol | TDEq | Bohringer, Fahey, et al., 1984 | gas phase; Relative to HOH..NO2-, Keesee, Lee, et al., 1980 |
+
= (
•
)
By formula: Cl- + H2O2 = (Cl- • H2O2)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 92.5 ± 4.2 | kJ/mol | TDEq | Bohringer, Fahey, et al., 1984 | gas phase; Relative to HOH..Cl-, Keesee, Lee, et al., 1980 |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 65.3 ± 4.2 | kJ/mol | TDEq | Bohringer, Fahey, et al., 1984 | gas phase; Relative to HOH..Cl-, Keesee, Lee, et al., 1980 |
By formula: HO4S- + H2O2 = (HO4S- • H2O2)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 66.5 ± 4.2 | kJ/mol | TDEq | Bohringer, Fahey, et al., 1984 | gas phase; Relative to HOH..HSO4-, Bohringer, Fahey, et al., 1984 |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 44.8 ± 4.2 | kJ/mol | TDEq | Bohringer, Fahey, et al., 1984 | gas phase; Relative to HOH..HSO4-, Bohringer, Fahey, et al., 1984 |
IR Spectrum
Go To: Top, Reaction thermochemistry data, References, Notes
- liquid; Bruker Tensor 37 FTIR
0.48207762, 0.48211176, 0.71088936 cm-1 resolution
References
Go To: Top, Reaction thermochemistry data, IR Spectrum, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Ramond, Blanksby, et al., 2002
Ramond, T.M.; Blanksby, S.J.; Kato, S.; Bierbaum, V.M.; Davico, G.E.; Schwartz, R.L.; Lineberger, W.C.; Elliso,
Heat of formation of the hydroperoxyl radical HOO via negative ion studies,
J. Phys. Chem. A, 2002, 106, 42, 9641-9647, https://doi.org/10.1021/jp014614h
. [all data]
Bierbaum, Schmidt, et al., 1981
Bierbaum, V.M.; Schmidt, R.J.; DePuy, C.H.; Mead, R.H.; Schulz, P.A.; Lineberger, W.C.,
Reactions of carbanions with triplet and singlet molecular oxygen,
J. Am. Chem. Soc., 1981, 103, 6262. [all data]
Bohringer, Fahey, et al., 1984
Bohringer, H.; Fahey, D.W.; Fehsenfeld, F.C.; Ferguson, E.E.,
Bond energies of the molecules H2O, SO2, H2O2, and HCl to various atmospheric negative ions,
J. Chem. Phys., 1984, 81, 2805. [all data]
Keesee, Lee, et al., 1980
Keesee, R.G.; Lee, N.; Castleman, A.W., Jr.,
Properties of clusters in the gas phase: V. Complexes of neutral molecules onto negative ions,
J. Chem. Phys., 1980, 73, 2195. [all data]
Notes
Go To: Top, Reaction thermochemistry data, IR Spectrum, References
- Symbols used in this document:
ΔrG° Free energy of reaction at standard conditions ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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